package com.wl2o2o.lanqiao;


import java.io.*;

/** 
* @author : WLei224
* @date ：2023年3月23日 下午8:28:44 
* 
*/
public class 杨辉三角 {

	public static void main(String[] args) throws IOException {
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		PrintWriter out = new PrintWriter(new OutputStreamWriter(System.out));
		int N = in.read();
//		System.out.println(getPos(N));
	}
	

}
